具有GTP协议处理功能的设备为()。
A.MT
B.BSS
C.SGSN
D.GGSN
参考答案:C, D
汽油机燃烧过程中最重要的阶段是着火延迟期。()
Information on search and rescue procedures will be found in the().
A.World Port Index
B.International Code of Signals
C.Sailing Directions
D.Merchant Ship Search and Rescue Manual (MERSAR)